My question is concerning a movie that I had watched back in the late 80's early 90's.?

I can't remember the name but I do remember that the the movie poster and tagline had something like "Man Vs. Alien" or "Human Vs. Alien". Please help me figure its name out!
Update: I also remember that it was about a sort of intergalactic boxing competition of sorts, that involved lots of alien species...
Update 2: It's got nothing to do with Alien vs. Predator since the movie I am asking about was even probably released in the 70's.
It's also not "Enemy, Mine" since I already know of it and seen it as well.
Update 3: THAT'S RIGHT! It is called ARENA!
Thank you so much for letting me know! I had been agonizing to know its name for years!
Mia, you are my hero!
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